NX does not currently have the ability to dimension in Centimeters. Your options are Milimeters, Meters, Architectural Feet/Inches and Engineering Feet/Inches. ER 8700353 already exists in our system to implement Centimeters as a drawing dimension.
Thank you @BenBroad for the existing ER information.
Right now (NX 10) we can not use the option 'Units Manager' in drafting application as it can be used in modeling application. Will it remain same in future releases or it will be available to define/manage units within drafting application?
it's possible to show unit in the dimension ?
The reason is because the planimetry I've (dwg file) imported into my NX part has dimensions in cm, then when I dimension my part in meters, I want they understand that aren't in cm.